45990900918 has 24 divisors (see below), whose sum is σ = 99819672888. Its totient is φ = 15303727872.

The previous prime is 45990900913. The next prime is 45990900941. The reversal of 45990900918 is 81900909954.

45990900918 is a `hidden beast` number, since 459 + 90 + 90 + 0 + 9 + 18 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45990900911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2203696 + ... + 2224467.

It is an arithmetic number, because the mean of its divisors is an integer number (4159153037).

Almost surely, 2^45990900918 is an apocalyptic number.

45990900918 is an abundant number, since it is smaller than the sum of its proper divisors (53828771970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45990900918 is a wasteful number, since it uses less digits than its factorization.

45990900918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428748 (or 4428745 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The spelling of 45990900918 in words is "forty-five billion, nine hundred ninety million, nine hundred thousand, nine hundred eighteen".